I prefer to not use Flash (doesn't work on all platforms, blocked by default on the latest Mac OS to prevent power consumption and I blocked it personally via ClickToFlash extension since it takes ages to load).

I'm planning to implement addition of custom sharing services in future http://example.com/share?url=${url}&title=${title}
Maybe you could just add a service and share directly without copying URL and title.

There are another solution http://zeroclipboard.org/ but it use Adobe Flash

There's the menu point "Feed Adress" which show you something like

Feed address:
http://pipes.yahoo.com/pipes/pipe.run?

So what if "feed address" was replaced by the feed's title? Konstantin could then select and copy the text as needed.

Already read this. No actually working solution.

There is discussion about this problem and possible solutions
http://stackoverflow.com/questions/400212/how-to-copy-to-the-clipboard-in-javascript

Unfortunately browsers do not allow access to clipboard for security reasons.